Complete Information Regarding the Pomeranian Toy Dog
As we have learned in "Age", a Pomeranian grows up very quickly. Small toy breed dogs such as the Pom can be declared a "Senior" as early as 6 and usually not later than 9. It is your dog's veterinarian who will decide when your Pom is a senior and will begin geriatric 
In general, a geriatric screening of your dog will include: (1) a thorough, hands-on physical exam; (2) blood tests; (3) possibly an electrocardiogram; (4) specialized tests depending on your dog's health history.
As dogs age, they still need their exercise to benefit their heart, lungs, circulation, digestive system, and joints -- as well as to fight obesity. Compared with younger dogs, however, older dogs need to adjust the type and duration of the exercise they do.
An older coat and older skin just can't take care of themselves like they used to -- because circulation and muscle tone aren't as good as they were when a Pom was younger. You can make up for the decrease in these functions with a grooming routine.
A gradual loss of appetite is not uncommon in older Pomeranians. As a dog ages, his senses of smell and taste may decrease, making food generally less appealing. A sudden loss of appetite may mean the onset of a serious illness, so be sure to check with your vet if your dog refuses to eat for more than a day. Appetite that gradually diminishes to a dangerously low level also may be a sign of a serious problem. Again, check with your vet if you are in the least concerned about your dog's appetite.